Canadian interests and oil lobby win coalition's support for highly polluting process in runup to European fuel quality vote

Study points to slapdash fact- and figure-checking in companies

The tech giant – the least green of the big tech companies – is preparing to swap its North Carolina centre from coal to solar

Extent of Lib Dem anger at policy to slash feed-in tariffs revealed in secret document seen by the Guardian

US government agency says CIA should abandon its traditional culture of secrecy and begin sharing its intelligence on the issue

Obama administration postpones decision on controversial tar sands pipeline until after next year's US elections

Greenpeace says Research in Motion lacks a clean electricity plan and targets to increase the use of renewable energy

If fossil fuel infrastructure is not rapidly changed, the world will 'lose for ever' the chance to avoid dangerous climate change

Brazil reported to have moved dates for historic summit to make it easier for Commonwealth leaders to attend

China bids to bridge gap between rich and poor nations by urging emerging economies to make concrete emission reduction plans